Problem in Training Ann for larger input/Output data.

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saurabh mishra
saurabh mishra 2011-7-27
回答： TED MOSBY 2025-6-10
Hi all, I am new to neural networking.I want train my neural network for pt = [10x7 array],but it is not getting trained.However for pt = [10x4 array] it is being trained properly. Can anybody tell me what is the problem with this code.
pt = [10x7 ] array; % pt = input
t = [4 9 16 25 36 49 64]; % t = target
net = newff(pt,t,10);
net.trainParam.epochs = 500;
net.trainParam.goal = 0.01;
net = train(net,pt,t);
y = sim(net,pt);
Thanks in Advance.

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回答（1 个）

TED MOSBY
TED MOSBY 2025-6-10
Hi,
The function "newff" is obsolete now and instead "feedforwardnet" is used as below:
pt = pt'; % 7×10
t = t(:)'; % 1×10
net = feedforwardnet(10);
net.trainParam.epochs = 500;
net.trainParam.goal = 0.01;
net = train(net, pt, t);
y = net(pt);
To know more about "feedforwardnet", refer the documentation below:
https://www.mathworks.com/help/deeplearning/ref/feedforwardnet.html?searchHighlight=feedforwardnet&s_tid=srchtitle_support_results_1_feedforwardnet
Hope this helps!

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